Oil-burner



w. HOERGER.

OIL BURNER. APPLICATION FILED OCT. 9, I920. 1,395,824. Patented Nov.1,1921. I76. I I70. 2.

2 Y5 I5 1 Is fgwwnto'o 14 HOASRQER WILLIAM HOERGER, OF ALBERT LEA,MINNESOTA, ASSIGNOR OF ONE-HALF TO ABE HIRSCI-I, OF ALBERT LEA,MINNESOTA.

OIL-BURNER.

Application filed October 9, 1920. Serial No. 415,828.

To all whom it may concern:

Be it known that I, VVILLIAM Honnenn, a citizen of the United States.residing at Albert Lea in the county of Freeborn and State of Minnesota,have invented certain new and useful Improvements in Oil-Burners; and Ido hereby declare the following to be a full clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

The present invention relates to oil burners and heaters, and isparticularly an improvement over the oil burning heater disclosed in mycopending application Serial No. 389,703, filed June 17, 1920.

The object of the invention is the provi sion of novel means forsupplying or feeding the fuel at the end of an air inlet passage orpipe, and providingfor the radial flow of fuel and air at the end ofsuch passage or pipe for the mixture and combustion of the fuel and air;I

With the foregoing and other objects in View which will be apparent asthe description proceeds, the invention resides in the construction andarrangement of parts hereinafter described and claimed, it beingunderstood that changes canbe made Within the scope of what is claimedwithout departing from the spirit of the invention.

The invention is illustrated in the accompanying drawing,'wherein:--'

Figure 1 is a vertical section of the heater including theimprovementsiportions being shown in elevation.

Fig. 2 is a fragmentary sectional view showing a modification.

Fig. 3 is a horizontal section on the line 33 of Fig. 2, portions of thedisk being broken away.

The heater shown in Fig. 1 is intended es pecially to be placed within awater tank for heating the water, although it can be used for othersuitable purposes. The heater comprises a vertical cylindrical casing5'of sheet metal or other suitable material having a top or cover 6provided with an outlet 7 from which the flue or discharge pipe 8extends, said flue having any suitable damper 9 for controlling thedraft. The casing has a concaved lower end or bottom 10.

Air is admitted downwardly centrally within the casing through avertical air in i let pipe 11 opening through the top 6 of theSpecification of Letters Patent.

casing at its upper end to communicate with the atmosphere, and thelower end of the pipe terminates a short distance above the bottom ofthe casing, thus supplying the air into the casing at the bottom thereofto pass radially in all directions and thence upwardly along the wall ofthe casing.

.The fuel feed as shown in Fig. 1, com prises'a vertical fuel tube orpipe 12 dieposed'concentrically within the pipe 11, with its lower endterminating slightly below the lower end of the pipe 11, and the pipe 12ex tends upwardly through a spider 17 and out of the pipe 11, andcarries a tank 16 containing the oil or other liquid fuel. pipe 12 has acontrolling valve18 above the jc?asi1ng 5, whereby to regulate thesupply of ue i In order to facilitate the vaporization of the fuel andmixing thereof with the air at the lower or discharge end of the airinlet pipe or passage 11, a disk or base 13 is secured on the centralportion of the bottom 10, and has a central vertical spindle lprojecting upwardly in the lower end portion of thepipe 12 in the axisthereof, leaving an annular slot around the spindle within the pipe ortube 12 for the fuel to pass downwardly. The disk 13 is of metal orother similar material, and a disk 15 of the same material is secured tothe lower end of the pipe or tube 12, and has a central opening for thedownward flow of fuel from the pipe 12. A disk 19 of wire mesh orequivalent material is seated on the lower disk 13 around the spindle14:, and a disk 20 of asbestos or its equivalent is seated on the wiremesh disk 19 while the disk 15 is seated on the asbestos disk 20. Theasbestos disk 20 provides a diffuser through which the oil vapor isdelivered, so that the vapor flows radially and is distributed uniformlyaround the disks. The lower disk 18 has an upturned marginal bead 13 todirect the fuel vapor or gas upward. The fuel thus passes to the edgesof the disks 13' and 15, and said disks are of slightly greater diameterthan the pipe 11, and there is an annular space between the end of thepipe 11 and disk 15 whereby the air flows radially beyond the edge ofthe disk 15 to create suction and mix the fuel vapor with the air, andsupport combustion around and beyond the edges of the disks. The fuel isthus fed gradually to the edges of the disks past The which the airflows whereby to provide the suction at the fuel outlet- The annularflame extends along the bottom 10 and then passes upwardly along thewall of the casing 5, whereby the heat is transmitted through the wallof the casing.

In the modified forms shown in Figs. 2 and 3, the fuel is supplied fromunderneath the disks instead of from above as shown in Fig. 1. The lowerdisk 13 does not have the spindle, and the fuel supply pipe or tube 12has its discharge terminal extending upwardly through the bottom 10 anddisks 13', 19 and 20. The upper disk 18 which is spaced slightly belowthe lower end of the air inlet pipe 11, has a central cap 24 disposedover the upper end of the pipe 12 and provided with a spider 25 thereinscrewthreaded on the pipe 12, to clamp the disks together and the oilwhich is delivered from the pipe 12 flows downwardly within the cap 2 onthe disk 20 in much the same manner that the fuel is delivered to thedisk 20 in Fig. 1.

Having thus described the invention, what is claimed as new is 1. An oilburner comprising a depending air supply pipe, disks disposed across thelower discharge end of said pipe and arranged for the flow of fuelbetween them to the edges thereof, said disks being spaced from the pipefor theradial flow of air past the edges of the disks, and means forsupplying fuel between said disks.

2. An oil burner comprising a depending air supply pipe, a pair of disksdisposed across and spaced from the lower end of said pipe for theradial flow of air from said pipe past the edges of the disks,fuel-feeding means between the disks for the flow of fuel to the edgesof the disks, and means for supplying fuel between the disks to saidmeans.

3. An oil burner comprising a pair of vertically spaced disks, a wiremesh disk on the lower disk, an absorbent disk on the wire mesh disk,and a fuel supply pipe connected to the upper disk of said pair forsupplying fuel on the absorbent disk.

' 4. An oil burner comprising an air supply pipe, a pair of disksdisposed across and spaced from the end of said pipe .for the radialflow of air from said pipe past the edges of said disks, anasbestos anda wire mesh disk between the first named disks, and a fuel supply pipeconnected to one of said disks for supplying fuel between the firstnamed disks.

5. An oil burner comprising vertically spaced disks, the lower diskhaving a marginal upturned bead, absorbent means between the disks'forthe feeding and flow of fuel to the edges thereof, and means forsupplying fuel between the disks to said means.

6. An oil burner comprising a depending air supply pipe, a pair ofvertically spaced i disks disposed across and spaced below the lower endof said pipe, the lower disk hav-.

ing an upturned marginal bead, a wire mesh disk on said lower disk, anabsorbent disk on said wire mesh disk, and a fuel supply I pipeconnected tothe upper disk of said pair to supply fuel on said absorbentdisk. -7. An Oll burner comprising. vertically spaced disks, a fuelsupply pipe extending upwardly through the lower disk, and the upperdisk having a cap disposed over the upper end of said pipe and providedwith means engaging said pipe.

In testimony whereof I have signed my name to this specification in thepresence of a subscribing witness.

WILLIAM HOERGER.

Witness:

FANNIE E. BIDDEIJL,

